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CHICAGO, IL - NOVEMBER 03: Chicago Cubs fan Rahaf Rihani chalks a message on a wall outside Wrigley Field the day after the Cubs defeated the Cleveland Indians to win the 2016 World Series on November 3, 2016 in Chicago, Illinois. The Cubs 8-7 extra-inning win in game seven landed them their first World Series title since 1908. (Photo by Scott Olson/Getty Images)

The bricks at Wrigley Field have always held a sacred place in the hearts of Chicago Cubs fans, but thanks to chalk memorials left after the team won its first World Series in over 100 years, those bricks hold even more meaning now.

Unfortunately, those chalk messages are about to go away.

That’s because the Cubs are getting ready for the next stage of their ballpark renovations, which will take place over the winter. Because of that construction, the team will begin fencing off the brick walls along Sheffield and Waveland Avenues beginning on Tuesday afternoon, president of business operations Crane Kenney announced in a letter to Cubs fans.

“While we hate to remove these cherished messages, chalk is a fleeting medium,” Kenney said. “To preserve these images, we will continue to photograph the outfield bleacher walls so we may share these postseason wall messages publicly in the future.”

Among the scores of fans leaving touching memorials following the Cubs win was actor John Cusack, who added his father's name on the wall.

A photo posted by John Cusack (@johncusack) on Nov 7, 2016 at 7:06pm PST

According to the team, fans will have until 5 p.m. on Tuesday night to leave messages on the wall and take photos before fences will begin going up around the ballpark.

Fans began leaving messages in chalk during the playoffs, but the practice really picked up steam after the Cubs won the World Series championship last week. Thousands of fans have left messages on the walls around the ballpark, and it’s helped Wrigley to remain a huge draw in the days following the championship victory.